/*!
* \file OxFunctionsT1Shmolli_test.cpp
* \author Konrad Werys
* \date 2018/07/29
*/
#include "CmakeConfigForTomato.h"
#include "gtest/gtest.h"
#include "OxTestData.h"
#ifdef USE_PRIVATE_NR2
#include "OxFunctionsT1Shmolli.h"
TEST(OxFunctionsT1Shmolli, calcModelValueTest) {
typedef double TYPE;
TYPE params[3] = {100, 200, 1000};
Ox::FunctionsT1Shmolli<TYPE> functionsObject;
EXPECT_DOUBLE_EQ(functionsObject.calcModelValue(params, 0), 100); // because shmolli
}
TEST(OxFunctionsT1Shmolli, calcLSResidualsTest) {
typedef double TYPE;
char filePath [] = "testData/blood.yaml";
Ox::TestData<TYPE> testData(filePath);
int nSamples = testData.getNSamples();
TYPE params[3] = {0, 0, 0};
Ox::FunctionsT1Shmolli<TYPE> functionsObject;
functionsObject.setNSamples(nSamples);
functionsObject.setInvTimes(testData.getInvTimesPtr());
functionsObject.setSignal(testData.getSignalMagPtr());
TYPE *residuals = new TYPE[nSamples];
functionsObject.calcLSResiduals(params, residuals);
for (int i = 0; i < nSamples; i++){
EXPECT_DOUBLE_EQ(residuals[i], -testData.getSignalMag()[i]);
}
delete [] residuals;
}
TEST(OxFunctionsT1Shmolli, calcLSJacobianTest) {
typedef double TYPE;
char filePath [] = "testData/blood.yaml";
Ox::TestData<TYPE> testData(filePath);
int nSamples = testData.getNSamples();
TYPE params[3] = {0, 0, 1200};
Ox::FunctionsT1Shmolli<TYPE> functionsObject;
functionsObject.setNSamples(nSamples);
functionsObject.setInvTimes(testData.getInvTimesPtr());
functionsObject.setSignal(testData.getSignalMagPtr());
TYPE jacobian[7*3];
functionsObject.calcLSJacobian(params, jacobian);
TYPE correct[7*3] = {
1, -0.920044, 0,
1, -0.860708, 0,
1, -0.805198, 0,
1, -0.239508, 0,
1, -0.0619868, 0,
1, -0.0167532, 0,
1, -0.00461166, 0,
};
for (int iSample = 0; iSample < nSamples; iSample++) {
for (int iDim = 0; iDim < 3; iDim++) {
EXPECT_NEAR(jacobian[iSample*3+iDim], correct[iSample*3+iDim], 1e-3);
}
}
}
TEST(OxFunctionsT1Shmolli, calcCostValueTest) {
typedef double TYPE;
char filePath [] = "testData/blood.yaml";
Ox::TestData<TYPE> testData(filePath);
int nSamples = testData.getNSamples();
TYPE params[3] = {0, 0, 0};
Ox::FunctionsT1Shmolli<TYPE> functionsObject;
functionsObject.setNSamples(nSamples);
functionsObject.setInvTimes(testData.getInvTimesPtr());
functionsObject.setSignal(testData.getSignalMagPtr());
EXPECT_DOUBLE_EQ(functionsObject.calcCostValue(params), 17169);
}
TEST(OxFunctionsT1Shmolli, calcCostDerivativeTest) {
typedef double TYPE;
char filePath [] = "testData/blood.yaml";
Ox::TestData<TYPE> testData(filePath);
int nSamples = testData.getNSamples();
TYPE params[3] = {100, 200, 1200};
Ox::FunctionsT1Shmolli<TYPE> functionsObject;
functionsObject.setNSamples(nSamples);
functionsObject.setInvTimes(testData.getInvTimesPtr());
functionsObject.setSignal(testData.getSignalMagPtr());
TYPE derivative[] = {0, 0, 0};
functionsObject.calcCostDerivative(params, derivative);
EXPECT_NEAR(derivative[0], -425.52433072265057, 1e-3);
EXPECT_NEAR(derivative[1], 588.84996553808264, 1e-3);
EXPECT_NEAR(derivative[2], 7.36064616633549, 1e-3);
}
TEST(OxFunctionsT1Shmolli, copyConstructor) {
typedef double TYPE;
char filePath [] = "testData/blood.yaml";
Ox::TestData<TYPE> testData(filePath);
int nSamples = testData.getNSamples();
TYPE signal[7] = {1, 2, 3, 4, 5, 6, 7};
TYPE newSignal[7] = {2, 2, 3, 4, 5, 6, 7};
TYPE newSignal2[7] = {3, 2, 3, 4, 5, 6, 7};
// init the necessary objects
Ox::FunctionsT1Shmolli<TYPE> functionsObject;
functionsObject.setNSamples(testData.getNSamples());
functionsObject.setInvTimes(testData.getInvTimesPtr());
functionsObject.setSignal(signal);
// copy and set signal
Ox::FunctionsT1Shmolli<TYPE> functionsObjectCopy = functionsObject;
functionsObjectCopy.setSignal(newSignal);
// copy and set signal
Ox::FunctionsT1Shmolli<TYPE> functionsObjectCopy2(functionsObject);
functionsObjectCopy2.setSignal(newSignal2);
// copy should preserve nSamples
EXPECT_EQ(functionsObjectCopy.getNSamples(), nSamples);
EXPECT_EQ(functionsObjectCopy2.getNSamples(), nSamples);
// copy should reset invTimes pointer
EXPECT_FALSE(functionsObjectCopy.getInvTimes());
EXPECT_FALSE(functionsObjectCopy2.getInvTimes());
// copy should not preserve signal pointer
EXPECT_NE(functionsObject.getSignal(), functionsObjectCopy.getSignal());
EXPECT_NE(functionsObject.getSignal(), functionsObjectCopy2.getSignal());
// check if the new signal pointers were asigned
EXPECT_EQ(functionsObjectCopy.getSignal(), newSignal);
EXPECT_EQ(functionsObjectCopy2.getSignal(), newSignal2);
}
#endif // USE_PRIVATE_NR2